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UID:DSC-22992
DTSTART;TZID=Europe/Berlin:20260619T140000
SEQUENCE:1781847546
TRANSP:OPAQUE
DTEND;TZID=Europe/Berlin:20260619T150000
URL:https://dresden-science-calendar.org/calendar/en/detail/22992
LOCATION:IFW\, Helmholtzstraße 2001069 Dresden
SUMMARY:Reese: Critical behavior of the thermal phase transition of U(1) la
 ttice gauge systems
CLASS:PUBLIC
DESCRIPTION:Speaker: Greta Reese\nInstitute of Speaker: Universität Hambur
 g\, Institute for Quantum Physics \nTopics:\n\n Location:\n  Name: IFW (A2
 E.30\, IFW Dresden)\n  Street: Helmholtzstraße 20\n  City: 01069 Dresden\
 n  Phone: \n  Fax: \nDescription: In this talk\, I will present our work [
 1]\, in which we model the phase transition of a superconductor as a U(1) 
 lattice gauge system\, and determine its critical behavior. For this\, we 
 perform Monte Carlo simulations\, treating the order parameter field and t
 he gauge field on equal footing\, without additional approximations. As th
 e defining correlation function\, we determine the order parameter correla
 tion function including a gauge string\, thus achieving a gauge-invariant 
 characterization of the long-range behavior explicitly. We obtain a critic
 al exponent that is consistent with the exponent of the U(1) transition of
  neutral bosons\, i.e. of Bose-Einstein condensation. We determine the cri
 tical behavior of the heat capacity\, which displays a temperature depends
  consistent with an XY transition. These results clarify the universality 
 class of the phase transition of this system.  References [1] G. S. Reese\
 , L. Mathey\, arXiv preprint arXiv:2603.09895 (2026) * Acknowledgement(s):
  authors acknowledge support from the Cluster of Excellence &amp\;#039\;CU
 I: Advanced Imaging of Matter&amp\;#039\; of the Deutsche Forschungsgemein
 schaft (DFG) - EXC 2056 - project ID 390715994 and ERDF of the European Un
 ion and by ’Fonds of the Hamburg Ministry of Science\, Research\, Equali
 ties and Districts (BWFGB)’. .
DTSTAMP:20260622T152719Z
CREATED:20260616T053722Z
LAST-MODIFIED:20260619T053906Z
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